AIC XD1100-1102 Manual de usuario descargar pdf (Pagina 44)

1U10 RBOD User’s Manual

We can now click on the “Create RAID” button to complete the RAID creation process and start

the RAID building process.

The built RAID will be a “Business” QoS level set RAID. Its level cannot be changed unless the

RAID is taken apart.

To summarize:

• The QoS is a handy feature that can facilitate disk and RAID management in a system

containing multiple enclosures with large amount of disks.

• One example of the feature is that it can be used in conjunction with User management,

where a User could be setup with permissions to only “Add” items, but not delete nor modify

them. The User in question would then have to create RAIDs using the pre-determined disks

QoS.

• The Administrator of the system could then setup a specific QoS for each disk while setting

up the system and let Users creating RAIDs only using the pre-determined disk QoS settings.

4.4. RAID Rebuilding

This section outlines the RAID rebuilding process, manual or automatic, as well as practical

usage information on the RAID rebuilding feature.

Because of the nature of a RAID, a disk belonging to an array will fail at a certain point of time.

The advantage of the RAID is to recover from this condition, without any data loss. To do so, a

drive that has either been removed, or failed, will need to be replaced with a similar drive (size,

type), to “rebuild” the RAID to a healthy status.

The disk used in an array to replace a failed/missing drive is called a “spare”, or “Hot Spare”.

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AIC XD1100-1102 Manual de usuario Pagina 44